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Fuel Tech, Inc.

FTEK
Exchange
Nasdaq
Industry
Industrial & Commercial Fans & Blowers & Air Purifing Equip
SEC CIK
0000846913

In the last 90 days, Fuel Tech, Inc. insiders filed 1 open-market purchase and 0 sales; 43 institutions reported holding it in 13F filings for Q2 2026, worth $16.3M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Fuel Tech, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
43
−2 vs. Q1 2026
Shares held
7.36M
−87.3K (−1.2%) vs. Q1 2026
Total value
$16.3M
+$7.18M (+79.0%) vs. Q1 2026
New holders
6
10 more added
Sold out
8
9 more reduced

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting FTEK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 43 institutions
Q1 2021: 50 institutionsQ2 2021: 45 institutionsQ3 2021: 39 institutionsQ4 2021: 41 institutionsQ1 2022: 34 institutionsQ2 2022: 30 institutionsQ3 2022: 36 institutionsQ4 2022: 40 institutionsQ1 2023: 37 institutionsQ2 2023: 40 institutionsQ3 2023: 38 institutionsQ4 2023: 36 institutionsQ1 2024: 33 institutionsQ2 2024: 34 institutionsQ3 2024: 36 institutionsQ4 2024: 39 institutionsQ1 2025: 35 institutionsQ2 2025: 36 institutionsQ3 2025: 48 institutionsQ4 2025: 45 institutionsQ1 2026: 46 institutionsQ2 2026: 43 institutions
Value heldQ2 2026: $16.3M
Q1 2021: $25.2MQ2 2021: $13.7MQ3 2021: $9.21MQ4 2021: $8.43MQ1 2022: $7.97MQ2 2022: $6.10MQ3 2022: $6.36MQ4 2022: $7.18MQ1 2023: $7.19MQ2 2023: $8.30MQ3 2023: $7.09MQ4 2023: $8.33MQ1 2024: $7.82MQ2 2024: $6.68MQ3 2024: $6.77MQ4 2024: $7.31MQ1 2025: $7.05MQ2 2025: $15.5MQ3 2025: $21.4MQ4 2025: $11.8MQ1 2026: $9.22MQ2 2026: $16.3M
Institutions holding FTEK and their total value by quarter
QuarterHoldersValue
Q2 202643$16.3M
Q1 202646$9.22M
Q4 202545$11.8M
Q3 202548$21.4M
Q2 202536$15.5M
Q1 202535$7.05M
Q4 202439$7.31M
Q3 202436$6.77M
Q2 202434$6.68M
Q1 202433$7.82M
Q4 202336$8.33M
Q3 202338$7.09M
Q2 202340$8.30M
Q1 202337$7.19M
Q4 202240$7.18M
Q3 202236$6.36M
Q2 202230$6.10M
Q1 202234$7.97M
Q4 202141$8.43M
Q3 202139$9.21M
Q2 202145$13.7M
Q1 202150$25.2M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Fuel Tech, Inc.; share changes are against Q1 2026.

Institutions holding FTEK in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Grace & White Inc1,541,307$3.41M0.54%00.0%Unchanged
Renaissance Technologies LLC1,102,406$2.44M0.00%−305,400−21.7%Reduced
Vanguard Capital Management LLC1,005,701$2.22M0.00%+17,703+1.8%Added
Peapod Lane Capital LLC820,592$1.81M1.22%+341,750+71.4%Added
Geode Capital Management, LLC522,983$1.16M0.00%−9,825−1.8%Reduced
BlackRock, Inc.496,493$1.10M0.00%+86,129+21.0%Added
US Bancorp304,776$673.6K0.00%00.0%Unchanged
Gsa Capital Partners LLP295,141$652.0K0.04%+48,889+19.9%Added
Two Sigma Investments, LP168,457$372.3K0.00%−69,622−29.2%Reduced
Beartown Capital Management, LLC146,689$324.2K0.14%00.0%Unchanged
Vanguard Fiduciary Trust Co133,459$294.9K0.00%+954+0.7%Added
State Street Corp121,846$269.3K0.00%00.0%Unchanged
Marquette Asset Management, LLC110,509$244.2K0.03%+110,509New
Jane Street Group, LLC109,483$242.0K0.00%+38,686+54.6%Added
Thompson Davis & Co., Inc.85,800$189.6K0.11%+85,800New
Essex Investment Management Co LLC77,159$170.5K0.02%−91−0.1%Reduced
Northern Trust Corp60,333$133.3K0.00%+28,898+91.9%Added
Sentinus, LLC40,000$88.4K0.01%+40,000New
Susquehanna International Group, LLP35,896$79.3K0.00%−104,196−74.4%Reduced
LexAurum Advisors, LLC20,160$44.6K0.01%+6,000+42.4%Added
Citadel Advisors LLC19,070$42.1K0.00%−202,329−91.4%Reduced
Legato Capital Management LLC18,165$40.1K0.00%00.0%Unchanged
UBS Group AG18,015$39.8K0.00%+18,014+1,801,400.0%Added
Group One Trading, L.P.13,903$30.7K0.00%−26,312−65.4%Reduced
Dimensional Fund Advisors LP13,428$29.1K0.00%−6,000−30.9%Reduced
Covestor Ltd12,426$27.0K0.02%00.0%Unchanged
HRT Financial LP11,983$26.0K0.00%+11,983New
Scientech Research LLC11,441$25.3K0.02%+11,441New
Simplex Trading, LLC10,491$23.2K0.00%+9,487+944.9%Added
HighTower Advisors, LLC10,440$23.1K0.00%00.0%Unchanged
Founders Capital Management6,000$13.3K0.01%00.0%Unchanged
Vanguard Global Advisers, LLC5,500$12.2K0.00%00.0%Unchanged
Wells Fargo & Company2,019$4.46K0.00%+2,019New
New England Capital Financial Advisors LLC2,000$4.42K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.1,200$2.65K0.00%00.0%Unchanged
SBI Securities Co., Ltd.710$1.57K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC600$1.33K0.00%00.0%Unchanged
Bryn Mawr Trust Co500$1.10K0.00%00.0%Unchanged
GWM Advisors LLC50$1110.00%00.0%Unchanged
Morgan Stanley21$460.00%00.0%Unchanged
FMR LLC18$400.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd1$20.00%−2−66.7%Reduced
CKW Financial Group200$00.00%00.0%Unchanged
XTX Topco Ltd0$00.00%−118,247−100.0%Sold out
Integrated Wealth Concepts LLC0$00.00%−35,000−100.0%Sold out
Cresset Asset Management, LLC0$00.00%−25,500−100.0%Sold out
Marshall Wace, LLP0$00.00%−21,770−100.0%Sold out
Chicago Partners Investment Group LLC0$00.00%−17,088−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−3,211−100.0%Sold out
Advisory Services Network, LLC0$00.00%−900−100.0%Sold out
Orion Capital Management LLC0$00.00%−100−100.0%Sold out
Integrity Wealth Advisors, Inc.––––Not filed